Need to see what kind of bumps they are, are they comedones(black heads or white heads) or acne proper. you can always continue retino A, but since its winters shorten the application time. If you are getting bumps continuously it is better to take isotretinoin orally, it does wonders. for marks you can use kojic acid cream to start with.......
Next Steps
you can consult it topical dosent work
Health Tips
avoid cheese and dairy, avoid oily foods, record your periods